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Alpha Industries |
HIP3™ Variable Attenuator
1.70–2.00 GHz
Features
I +50 dBm IP3 Typical
I Low Loss 1 dB Typical
I Attenuation 30 dB Typical
I Good VSWR <1.5:1 Typical
I Small SOIC-8 Package
Description
The AV102-12 is a current controlled variable attenuator
from Alpha’s series of HIP3™ components. It is designed
to meet the wide dynamic range required in spread
spectrum wireless base station applications. A monolithic
quadrature hybrid is teamed with a silicon PIN diode pair
in a plastic surface mount package reducing size and
assuring consistency from part to part.
Electrical Specifications at 25°C
Parameter
Frequency
Insertion Loss (0 mA Control Current)
Attenuation @ 3.0 mA Control Current (1850 MHz)
VSWR All Ports
Input 3rd Order Intercept
Group Delay
Operating Characteristics at 25°C (0, +5 V)
Parameter1
Switching Characteristics2
Maximum Input Power for <1 dB
Attenuation Variation
Condition
Rise, Fall (10/90% or 90/10% RF)
On, Off (50% CTL to 90/10% RF)
Video Feedthru (Peak)
1. All measurements made in a 50 Ω system, unless otherwise specified.
2. 0–4 mA square wave total control current.
AV102-12
Min.
1.70
18.5
+47
Typ.
1
1.5
+50
0.6
Max.
2.00
1.5
25.0
1.8
1.0
Unit
GHz
dB
dB
dBm
ns
Frequency
Min.
Typ.
+15
Max.
5
8
2
Unit
µs
µs
mV
dBm
Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email [email protected] • www.alphaind.com
Specifications subject to change without notice. 6/01A
1
HIP3™ Variable Attenuator 1.70–2.00 GHz
AV102-12
Typical Performance Data
1.5
1.4
1.3
Output
1.2
1.1
Input
1.0
0.0000 0.0010 0.0020 0.0030 0.0040 0.0050
Current (Amps)
Input/Output VSWR vs. Current
@ 1700 MHz
0.0
-10.0
-20.0
-30.0
-40.0
1700 MHz
1850 MHz
2000 MHz
-50.0
0.0000 0.0010 0.0020 0.0030 0.0040 0.0050
Current (Amps)
Attenuation vs. Current
1.5
1.4
1.3
1.2
Input
1.1
Output
1.0
0.0000 0.0010 0.0020 0.0030 0.0040 0.0050
Current (Amps)
Input/Output VSWR vs. Current
@ 1850 MHz
0.0 0.0 mA
0.2 mA
-5.0 0.7 mA
-10.0
1.7 mA
-15.0
2.4 mA
-20.0
-25.0
1.70
1.80 1.90
Frequency (GHz)
3.0 mA
2.00
Attenuation vs. Frequency
1.5
1.4
1.3
Input
1.2
Output
1.1
1.0
0.0000 0.0010 0.0020 0.0030 0.0040 0.0050
Current (Amps)
Input/Output VSWR vs. Current
@ 2000 MHz
10
1
0.1
0.01
400 600 800 1000
Diode Voltage (mV)
Typical PIN Diode Current vs. Voltage
2 Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email [email protected] • www.alphaind.com
Specifications subject to change without notice. 6/01A
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